Protoconch multispiral; teleoconch of circa 5 moderately convex whorls adorned with circa 20 axial ribs, orthocline to weakly opisthocline, crossed by slightly thinner spirals; the intersections of radial ribs and spiral cords give rise to some rounded rectangular tubercles, the subsutural row bearing the weakest, « thus forming no shoulder » (Manousis & al., 2018); aperture with a deep and narrow anal notch adapically, and a wide and short siphonal canal. The colour varies from pale orange to a dark brown, with occasional whitish tubercles, sometimes lined up, sometimes isolated. Close to R. corbis but usually darker coloured, smaller, with a less scalar shape and shorter tubercles (Pusateri & al., 2018). Differs from R. atropurpurea by its deeper notch on top of the labrum.